Traveling crane.



' W. L. STRAHLEM.

TRAVELING CRANE. APPLlCATl0N FlLED MAR-j. 1916.

1 ,262,866, Patented Apr. 16, 1918.

2 SHEETS-SHEET 1.

W.-L. STRAH'LEM.

TRAVELING came.

- APPLICATION FILED MAR. 75 915' 1,262,866" Patented Apr. 16, 1918.

2 $HEE1SSHEET 2.

WILLIAM L. STEAI-ILEM, 0F MIDDLE POINT, OHIO.

TRAVELING CRANE.

Specification of Letters Eatent.

Patented Apr. 16, 1%18;

Application filed. March 7, 1316. Serial No. 82,663.

To all whom it may concern:

Be it known that I, WVILLLXMI L. Srnarr- LEM, a citizen of the UnitedStates, residlng at Middle Point, in the county of Van Wert, A

State of Ohio, have invented certain new and useful Improvements inTraveling Cranes; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

The primary object of the invention is to provide a crane which isincluded as a part of the equipment of a power shovel or the like, andis so mounted upon the frame thereof that it can be utilized to lift thetrack sections from the rear of the car and deposit them in position tobe coupled to the track in front of the car. To this end, the inventionconsists in the provision of a crane which is mounted at one side of theframe of the car which supports the power shovel or similar machine andcan travel from end to end thereof, the frame having a swinging boomwhose reach permits the use of the crane for shifting track sections orfor any other ordinary purpose for which such a crane may be used.

A further object of the invention is to provide a traveling crane of theabove mentioned character, which is of comparatively simple andinexpensive construction, which may be easily operated, which will provethoroughly eflicient for the purposes for which it is designed, andwhich may be operated by the power source located upon the vehicle forthe operation of the scoop, shovel or other mechanism thereon.

With these objects in View, together with others which will appear asthe description proceeds, the invention resides in the novel combinationand arrangement of parts, all as will be described more fullyhereinafter, illustrated in the drawings, and particularly pointed outin the claim.

The invention will be best understood by reference to the accompanyingdrawings, wherein:

Figure 1, is a side elevation of a conventional form of steam shovel,and illustrating the application of a traveling crane constructed inaccordance with my invention,

Fig. 2, is an end view of the device shown in Fig. 1,

Fig. 3, is a transverse sectional view taken substantially upon the line3-3 of Fig. 1,

Fig. 1, is an enlarged detail section taken through the improved craneemployed in attaining the objects of the invention,

Fig. 5, is a sectional plan view taken on line 5-5 of Fig. 4.

Referring now more particularly to the drawings, 10 indicates a car ofthat type commonly used in excavating or hoisting operation to supportthe shovel, scoop or crane for performing these functions. The car inthe present instance is of that type wherein sectional track is employedfor its support, and wherein it is necessary as the car advances to liftthetrack at the rear of the car, convey the same to the forward end ofthe car, and deposit the same to extend the trackway in advance ofthecar. It is the primary object of the invention to provide a simple andefiicient means for performing these track lifting, conveying anddepositing functions, as well as to perform other similar lifting andconveying functions.

Mounted upon each side of the car 10, to extend substantially the entirelength there of, and in spaced parallel relation, are tracks 11. Thesetracks are preferably arranged one adjacent the top, and the otheradjacent the bottom or floor portion of the car. As the trackways andmechanisms upon each side'of the car are identical, that upon one sideonly will be described. The lowermost track 11 may be formed of asuitable rail, held spaced outwardly from the side of the car bysuitable brackets 12. The upper track may be similarly secured adjacentthe upper part of the car, and preferably in. close proximity to thesides of the car. The conveyor or support for the traveling cranecomprises a platform or frame 13, which is provided adjacent its inneredge with spaced wheels 14 of a construction to rest upon the lowertrack rail 11.- A traveler or trolley 15 is arranged to travel upon theuppermost rail 11 and in vertical alinement with the frame or platform13. The traveler is provided with wheels 16 mounted in spaced relationto each other, and similar to the wheels 14 of the frame upon thelowermost track. Bars 17 are sement of weight borne by the frame orplatform13 will be delivered through the' bars 17 m the traveler ortrolley 15, whereby such weights are equally distributed to the spacedtrack-' It will also be observed that movethe frame 13 in its trackway'will be delivered through the bars 17 to the traveler 15, whereupon bothwill travel in ways.

unison.

'As a'motive'power for the traveling platform or frame-above .descr1bed,the source of'power-upon the car utilized for operating its shovel orhoist is employed. A shaft 19 is arranged to extend transversely of the;.'the projecting ends of the shaft are procar adjacent the lowerportion thereof, and

. vided with. sprocket wheels 20. A-sprocket 21 is also secured to theshaft at any point suitable in its length, over which asprocket chain'22 is passed, the said chain 22 being arranged over a sprocket 23secured upon a shaft 2 "driven by a suitable motor or enugin'e 25 uponthecar.

" As shovels or cranes of the type mentioned are driven or operated-byvarious sources of 'energy', itis to be understood that the device isnot necessarily confined to the use of any particular source of power,but may be with facility applied to various types of motors.

1 Sprocket wheels 26. are mounted upon suitable shaftings adjacent theopposite ends of the car 10 and preferably in alinement with thesprockets 20 upon the shaft 19, a chain 27 being passed over thesprockets 20 and 26 respectively; the ends of the said chain beingconnected to theopposite ends of the frame tation of the shaft 19. 45.

or platform 13. From the construction so far described, it is apparentthat the power generated by the motor orengine 25 may be utilized torotate the shaft 19 whereupon the frame 13, through its connection withthe preferably. to, project upwardlyv therefrom is a hub member 29. Thishub member provides an annular fiange 30, upon which is.

adapted to rest a flange or rim 31 formed to project outwardly from thelower end of a socket member The socket member is thus mounted forrotary movement upon the hub section 29', and a crane arm or boom 33 7extends upwardly'and angularly from the upper portion. of the saidsocket member.

A'link 33 pivotally connects the free end of the boom 33, and thetraveler 15, whereby the said boomend will be supported, a rigidextension rod 15. being extendedupon the traveler-15 tozutilize'thepivot of the link amer the. vertical axisof the hubzsection.

:' .29.. Thearrangement' also permits of swinging of the boom,

To facilitate rotating of the boom 33, the flange 31 upon the socketmember 32 is provided in its periphery with teeth'34, which are inmeshwith a gear 35 mounted for ro- 'tation upon the frame or platform 13. A

crank handle 36 may be used for rotating the above described gear, andit is obvious that rotary movement of the gear 35 will be utilized toimpart similar movement to the socket member'32, whereupon the,crank or[boom arm 33 may be rotated upon the platform.

The outermost end -,of the boom 33 is provided with a block or groovewheel 37, over which passes a rope, cable or chain 38 supporting at oneend a block 39 for lifting a desired load, and which maybe wound at itsopposite end arounda drum or Windlass 40 mounted upon the frame 13. Itwill of c'ourse be understood that the indlass 4E0 maybe dispensed withand the cable 38 may be operated by hand, or the Windlass may besuitably geared to apov'ver mechanism (not shown). ;However, a crank llis shown in the present instance for manipulation of the Windlass, r

III-OPGI'ZL131011, bl16 shaft 19 is rotated in such direction as to movethe frame 13 and the part carried thereby to the rear end of the car.The crank handle '36 maythen be operated to swingthe boom .33 adjacentthe rear end of the car in convenient position to secure the blockcarried thereby to the section of trackway which it is desired .to move.TheWindlass/IO, may then be operated to lift the load carried by thesling clear of the ground, whereupon the boom may be operated. to swingoutwardly from the car body, and the power source 25 operated to movethe frame 13 upon its track to the forward end of the can The boom andwindlass may then be operated to deposit the load in the desiredposition. Asshown in dotted lines in Fig, 1, the chain 27 passesover'the sprocket 20 in such manner, as to impart movement of the chain2 7 reverse from that of the chain-upon the opposite side of the car.=Bythis arrangement it is seen thatflthe traveling cranes upon each sideof the vehicle move in'opposite-directions upon the rotation of theshaft 19 'Obviouslv such arrangement enables workmen tomore quicklylift, transport, and depositrthe loads. W Vhile the above descriptionrefers to a particular embodiment of the invention, I

am aware that the same is susceptible to various changes in theuminor,detailsof construction and arrangementof parts and I reserve to myselfthe right to makesuch rchanges as I may'see fit without departingfrom'the spirit of the invention.

I claim: The. combination-with a car,'of upper and 1 lower trackssupported;,uponrach; de of the car, a platform on eachside of the car,

each platform having its outer end suspendform, a power source on thecar for actuat- 10 ed from the upper track, and bearing agamst ing theshaft and a hoisting mechanism on the lower track in horizontal relationthereeach of the platforms.

to, a shaft extending across the car, a flexi- In testimony whereof, Iafiix my signature, ble driving element mounted along each of in thepresence of two witnesses.

the lower tracks, means on each end of said WILLIAM L. STRAHLEM. shaftfor actuating the driving elements in Witnesses:

opposite directions, connections between JAMES SHEFFIELD,

each driving element and the adjacent plat- W. H. BURGGER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

- Washington, I). 0."

